Digestion, Respiration, and Circulation.
By: (Your name)
Introduction
• Body contains multiple organ systems.
• Focus on three systems
– Digestive system
– Respiratory system
– Circulatory system
Digestion
• Purpose - break down ingested materials
into their most basic units
• Pathway - oral cavity, esophagus,
stomach, small intestine, large intestine.
Organs Involved
• Primary Organs
– Stomach
– Small Intestine
– Large Intestine
• Secondary Organs
– Pancreas
– Liver
– Gallbladder
Molecular Digestion
• Carbohydrates
• Proteins
• Fats
Respiration
• Purpose - provide the lungs
with oxygen to replenish
deoxygenated tissues and to
remove carbon dioxide from
the body.
• Pathway - Mouth/nose,
trachea, lungs
Circulation
• Purpose - to supply the body with
oxygenated blood.
• Pathway
– Two separate pathways
• Pulmonary circuit
• Systemic circuit
Circulatory Accessories
•
•
•
•
Heart
Arteries
Veins
Capillaries
Interrelationships
• Respiratory and Circulatory
• Digestive and Circulatory
• Respiratory and Digestive
References
How Digestion Works. Retrieved January 17, 2009, from Children Memorial
Hospital Web site:
http://www.childrensmemorial.org/depts/gastroenterology/how_digest_works
.aspx
Retrieved January 17, 2009, Web site: http://www.brianmac.co.uk/respiratory.gif
Retrieved January 17, 2009, Web site:
http://www.telemediamagazine.com/images/circulation_Img01.jpg
The Human Heart. Retrieved January 17, 2009, from The Franklin Institute
Web site: http://www.fi.edu/learn/heart/vessels/vessels.html